Check if String contains any String from array

Question

I know I can check if a string contains another string like this

NSString *string = @\"hello bla bla\";
if ([string rangeOfString:@\"bla\"].location == NSNotFoun         


        

Answer 1

Besides my cheating the my other question, here an idea how really to avoid time costly looping: Use Set computation magic!

• created a class 'Sentence', instantiate it with the strings to test
• created a 'Word' class that takes a word to search for
• overwrite both classes' isEqual: method to match for if a word is in the sentence (use sets there too!)
• put those into an array.
• from this array create a NS(*)Set object
• put all word in a set
• execute union on it.